IP Library Granted Patent US 10,443,312
Granted Patent B2
US 10,443,312 · App. 15/391,634 · Granted Oct 15, 2019

System and method for heating the ground

Inventor: Michael J Davis (Ramsey, MN)
E21B10/44E02D19/00E02D2250/0038
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Quick Facts
Patent No.
US 10,443,312
App. No.
15/391,634
Granted
Oct 15, 2019
Kind
B2
Abstract

A frost removal system is for thawing frozen ground and a method removes frost from a selected area of frozen ground. The method can include providing at least one heat transfer device; auguring a hole into the frozen ground to at least a depth of the frost. The at least one heat transfer device is lowered into the selected area of frozen ground and self-augured to the predetermined depth. The at least one heat transfer device is heated and the heat is allowed to travel along a length of the at least one heat transfer device. Heat is applied from the at least one heat transfer device for thawing the selected area of frozen ground until the frost is removed. The removal system may also be used to remove moisture from saturated soil and to bake columns of soil with increased load-bearing capacity.

Claims (11)

1. A method of removing frost from a selected area of frozen ground comprising:

providing at least one tubular heat transfer device, the at least one tubular heat transfer device having a top and a bottom when in use with a drill bit at the bottom of the tubular heat transfer device and helical flighting above the drill bit and along a length of the at least one tubular heat transfer device an electric screw plug heater in the at least one tubular heat transfer device, and a power coupling and a collar at the top of the heat transfer device;

removably attaching the collar to a driver and drilling a hole with the drill bit into the selected area of frozen ground to a predetermined depth, wherein the predetermined depth is at least a depth of the frost while simultaneously rotating the at least one tubular heat transfer device so the helical fighting engages surrounding frozen ground and lowers the at least one tubular heat transfer device in the hole to the predetermined depth, the helical flighting engaging the surrounding frozen ground and preventing movement of the at least one tubular heat transfer device from the predetermined depth;

heating the at least one tubular heat transfer device and allowing the heat to travel along a length of the at least one tubular heat transfer device;

applying, for a selected period of time, heat from the at least one tubular heat transfer device for thawing the selected area of frozen ground until the frost is removed; and

removing the at least one tubular heat transfer device from the ground when heating is no longer needed.

2. The method of claim 1 , wherein after the selected period of time, the heat is shut off and the at least one tubular heat transfer device is lifted out of a thawed area of ground.

3. The method of claim 1 , wherein the top of the at least one tubular heat transfer device includes a quick connector.

4. The method of claim 1 , further comprising augering the at least one tubular heat transfer device to a precision of depth where a portion of the at least one tubular heat transfer device is above the selected area of frozen ground.

5. The method of claim 4 , wherein the at least one tubular heat transfer device includes a threaded connection for the drill bit.

6. The method of claim 1 , further comprising the steps of monitoring and adjusting power load requirements and temperatures using a controller.

Assignments (3)
SECURITY INTEREST Recorded Jan 31, 2025
From: MINNESOTA STREET WORKS, LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 070075/0099 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 28, 2025
From: BFG PATHWAY LLC
To: MINNESOTA STREET WORKS, LLC
Reel/Frame 070035/0329 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2023
From: DAVIS, MICHAEL J.
To: BFG PATHWAY, LLC.
Reel/Frame 065962/0620 →
Continuity (2)
Provisional Application 62271908 · Dec 28, 2015
Related Publication 20170233982A1 · Aug 17, 2017